Home
Class 12
PHYSICS
A ball of mass 1 kg is projected with a ...

A ball of mass 1 kg is projected with a velocity of `20sqrt(2)` m/s from the origin of an xy co-ordinate axis system at an angle `45^(@)` with x-axis (horizontal). The angular momentum [In Sl units] of the ball about the point of projection after 2 s of projection is [take `g=10 m//s^(2)`] (y - axis is taken as vertical).

A

`0.1 rad//s`

B

`0.2 rad//s`

C

`0.3 rad//s`

D

`0.4 rad//s`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • APPENDICES (REVISION EXERCISE)

    AAKASH SERIES|Exercise LAW OF MOTION|128 Videos

  • APPENDICES (REVISION EXERCISE)

    AAKASH SERIES|Exercise MOTION IN A STRAIGHT LINE|59 Videos

  • APPENDICES ( REVISION EXERCISE )

    AAKASH SERIES|Exercise REVISION EXERCISE (MAGNETISM AND MATTER )|52 Videos

  • ATOMS

    AAKASH SERIES|Exercise PRACTICE EXERCISE|21 Videos

Similar Questions

Explore conceptually related problems

A ball is projected with 20sqrt2 m//s at angle 45^(@) with horizontal.The angular velocity of the particle at highest point of its journey about point of projection is

A body of mass m is projected with a velocity u at an angle theta with the horizontal. The angular momentum of the body, about the point of projection, when it at highest point on its trajectory is

A particle of mass 1kg has been thrown with initial speed 20 m/s making an angle 60° with the horizontal ground. the angular momentum of the particle about point of projection when the projectile is at highest point is (g=10m/s^2)

The particle of mass 1 kg is projected with velocity 20sqrt(2) m/s at 45^(@) with ground . When , the particle is at highest point (g=10 m//s^(2)) ,

A particle of mass m is projected with velocity v moving at an angle of 45^(@) with horizontal. The magnitude of angular momentum of projectile about point of projection when particle is at maximum height, is

A ball of mass 2 kg is projected horizontally with a velocity 20m/s from a building of height 15m. The speed with which body hits the ground is :

A particle is projected with a speed 10sqrt(2) making an angle 45^(@) with the horizontal . Neglect the effect of air friction. Then after 1 second of projection . Take g=10m//s^(2) .

An object of mass 10 kg is projected from ground with speed 40 m/s at an angle 60^(@) with horizontal the rate of change of momentum of object one second after projection in SI unit is [ Take g = 9.8 m/ s^(2) ]

A particle is projected from ground with velocity 40sqrt(2)m//s at 45^(@) . At time t=2s

A ball is projected from a high tower with speed 20 m/s at an angle 30^@ with horizontal x-axis. The x-coordinate of the ball at the instant when the velocity of the ball becomes perpendicular to the velocity of projection will be (take point of projection as origin):

AAKASH SERIES-APPENDICES (REVISION EXERCISE)-MOTION IN A PLANE
  1. A boy can throw a stone up to a maximum height of 10 m. The maximum ho...

    Text Solution

    |

  2. A particle is projected from the ground with an initial speed u at an ...

    Text Solution

    |

  3. A ball of mass 1 kg is projected with a velocity of 20sqrt(2) m/s from...

    Text Solution

    |

  4. A two particles P and Q are separated by distance d apart. P and Q mov...

    Text Solution

    |

  5. The direction of projectile at certain instant is inclined at angle al...

    Text Solution

    |

  6. A particle is projected from a horizontal floor with speed 10(m)/(s) a...

    Text Solution

    |

  7. If v(1) and v(2) be the velocities at the end of focal chord of projec...

    Text Solution

    |

  8. If a stone is to hit at a point which is at a distance d away and at a...

    Text Solution

    |

  9. An object in projected up the inclined at the angle shown in the figur...

    Text Solution

    |

  10. A projectile is fired with a velocity u at right angles to the slope, ...

    Text Solution

    |

  11. In figure shown below, the time taken by the projectile to reach from ...

    Text Solution

    |

  12. A fighter plane flying horizontally at an altitude of 1.5 km with spee...

    Text Solution

    |

  13. At a certain height a body at rest explodes into two equal fragments w...

    Text Solution

    |

  14. A stair case contains ten steps each 10cm high and 20 cm wide. The min...

    Text Solution

    |

  15. In the above problem, the time taken by the displacement vectors of th...

    Text Solution

    |

  16. In the above problem, this horizontal distance between the two fragmen...

    Text Solution

    |

  17. At a certain height a shell at rest explodes into two equal fragments....

    Text Solution

    |

  18. A bomb at rest at the summit of a cliff breaks into two equal fragment...

    Text Solution

    |

  19. From certain height 'h' two bodies are projected horizontally each wit...

    Text Solution

    |

  20. An object is projected horizontally from a top of the tower of height ...

    Text Solution

    |